文献类型：期刊文献

中文题名：纤维增强煤矸石轻骨料混凝土路用性能研究

英文题名：Road Properties Research on Fiber Enhancement Coal Gangue Lightweight Aggregate Concrete

作者：朱凯[1];原胜利[2];马先伟[1]

第一作者：朱凯

机构：[1]河南城建学院土木工程学院;[2]新乡学院土木工程与建筑学院

第一机构：河南城建学院土木工程学院,平顶山467036

年份：2015

卷号：0

期号：6

起止页码：58-61

中文期刊名：混凝土与水泥制品

外文期刊名：China Concrete and Cement Products

基金：河南城建学院科学研究基金重点项目(2011JZD011)

语种：中文

中文关键词：聚丙烯纤维;煤矸石;水泥混凝土;微观结构;路用性能;试验研究

外文关键词：Polypropylene fiber; Coal gangue ; Cement concrete ; Microstructure ; Road performance ; Experimental study

摘要：以煤矸石为粗骨料,掺入不同掺量的聚丙烯纤维配制路面水泥混凝土,对混凝土的路用性能和微观结构进行了试验研究,分析了纤维的增强机理。结果表明,聚丙烯纤维可以减少混凝土中微裂缝的产生,抑制连通裂缝的发展,在一定掺量范围内能够有效提高煤矸石轻骨料混凝土的抗折强度和耐磨性,随着掺量的增加显著提高混凝土的抗渗性和抗冻性。煤矸石轻骨料混凝土中掺入聚丙烯纤维,可获得良好的路用性能。
The road performance and microstructure of pavement concrete with coal gangue aggregate and different content of polypropylene fiber were researched, and the enhancement mechanism of fibe was analyzed. The test results show that polypropylene fiber can reduce the generation of micro cracks in concrete and inhibit the development of con- nected cracks. A certain dosage of polypropylene fiber can improve the flexural strength and abrasion resistance of coal gangue lightweight aggregate concrete, and the permeability resistance and frost resistance of concrete significantly improve with the increase of polypropylene fiber dosage. Coal gangue lightweight aggregate concrete mixed with polypropylene fiber can obtain good road performance.